444721740 has 48 divisors (see below), whose sum is σ = 1246247520. Its totient is φ = 118494720.

The previous prime is 444721729. The next prime is 444721769. The reversal of 444721740 is 47127444.

It is a happy number.

444721740 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97920 + ... + 102360.

It is an arithmetic number, because the mean of its divisors is an integer number (25963490).

Almost surely, 2^444721740 is an apocalyptic number.

It is an amenable number.

444721740 is an abundant number, since it is smaller than the sum of its proper divisors (801525780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444721740 is a wasteful number, since it uses less digits than its factorization.

444721740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6122 (or 6120 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 33.

The square root of 444721740 is about 21088.4266838472. The cubic root of 444721740 is about 763.3015074586.

The spelling of 444721740 in words is "four hundred forty-four million, seven hundred twenty-one thousand, seven hundred forty".